Eunotia rhomboidea Hustedt (1950: 435)

Amaral, Mailor Wellinton Wedig, Medeiros, Gabriela, Daufenbach, Vanessa, Sampaio, Silvio Cesar, Reis, Ralpho Rinaldo Dos, Ludwig, Thelma Alvim Veiga & Bueno, Norma Catarina, 2024, Taxonomy of epilithic diatoms and teratological forms under the presence of metals in surface sediment, Phytotaxa 647 (3), pp. 237-273 : 246

publication ID	https://doi.org/10.11646/phytotaxa.647.3.3
DOI	https://doi.org/10.5281/zenodo.14743449
persistent identifier	https://treatment.plazi.org/id/C92C87AE-FFF4-FFF1-FF2B-FF34C35BFE2C
treatment provided by	Felipe (2024-08-02 12:46:12, last updated 2025-01-26 20:25:14)
scientific name	Eunotia rhomboidea Hustedt (1950: 435)
status

Treatment

Figs 5 View FIGURE 5 : E–G

Length: 28.5–59.1 µm; width: 5.5–5.9 µm; striae: 10–11 in 10 µm (n = 9)

Teratological form: deformed valve outline, with protrusion or bent of the valve.

Occurrence: S2.

Ecological characteristics: Cond.: 1.00–76.00 µS cm –1; BOD: 2.03–3.50 mg L− 1; COD: 4.79–27.60 mg L− 1; N-NH: 200–310 µg L− 1; NO: − 3 3 2.00– 2.53 mg L− 1; DO: 11.62–17.23 mg L− 1; pH: 5.11–5.79; PO: 0.05–0.323 mg L− 1; TP: 0.17–0.35 mg L− 1; TS: 61.00–83.00 4 mg L− 1; Temp.: 19.44–21.55 °C; Turb.: 1.09–4.73; Flow: 0.33–0.82 m 3 s; Average depth: 0.07–0.15 m; Prec.: 2.73–3.81 mm.

Metal concentrations: Co: 19.52–23.11 mg L –1; Cr: 25.92–78.24 mg L –1; Cu: 196.71–253.92 mg L- 1; Mn: 329.01–434.49 mg L –1; Ni: 33.21–84.74 mg L –1; Pb: 24.42–38.28 mg L –1; Zn: 78.35–182.64 mg L –1.

References

Hustedt, F. (1950) Die Diatomeenflora norddeutscher Seen mit besonderer Berucksichtigung des holsteinischen Seengebiets V-VII. Seen in Mecklenburg, Lauenburg und Nordostdeutschland. Archiv fur Hydrobiologie 43: 329 - 458.

Figures

FIGURE 5. Epilithic diatoms from Cascavel River micro-watershed in LM.A. Eunotia ossicula. B–G. E. rhomboidea. E–G. Teratological valves. H. E. tropico-arcus. I–K. E. veneris. L. E. yanomami. M–P. E. yberai. N–P. Teratological valves. Q. Cymbopleura naviculiformis. R–S. Encyonema angustecapitatum. T. E. perpusillum. U. E. neogracile. V–X. E. neomesianum. X. Teratological valve. Y–AA. E. silesiacum. AA. Teratological valve. AB. E. minutiforme. AC–AE. E. exuberans. AF–AH. Navigeia ignota. AI–AK. Placogeia kriegeri. AL–AM. Encyonopsis subminuta. AN–AO. E. difficilis. AP. E. schubartii. AQ–AS. E. thienemannii. AT–AU. Geissleria punctifera. AV. Kurtkrammeria spicula. Scale bars: 10 µm.